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Gateway NV4900 Replacement Battery 11.1V 6600mAh 31CR19/652

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From $124.99 USD $149.99
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Fits Gateway NV4900, NV49C, NV59C and 79 other models; replaces OEM part 31CR19/652 and cross-reference numbers AS10D31, AS10D3E, AS10D41, AS10D51, AS10D61, AS10D71, BT.00603.111, BT.00606.008, BT.00607.125, BT.00607.127.
11.1V, 6600mAh lithium-ion pack delivers 73.26Wh — matches original capacity for full runtime on Gateway NV-series systems without dimming or CPU throttle.
Connector slides into the battery slot from the left; locking tab pulls outward to release, then resets when new pack seats fully against the contact strip.
We bench-tested this cell against the NV4900's fuel gauge IC; BMS accepted the initial handshake and charged cleanly to 100% with zero cutoff errors on the first cycle.
After installation, run one full discharge down to hibernate cutoff, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears false health warnings that appear after every cell swap.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

11.1V

Amp

6600mAh

Gateway NV4900 Series — 11.1V Li-ion Replacement Battery (31CR19/652)

This 11.1V, 6600mAh Li-ion battery replaces the original cell in Gateway NV4900, NV49C, NV49C13C, NV59C, and over 79 additional NV-series notebook models. It slots into the same battery bay and connects to the same BMS handshake circuit as the factory unit. Capacity is 73.26Wh — matched to the original specification.

  • NV-series platform fit: These models share a common 11.1V three-cell battery rail and use the same OEM connector pinout and BMS communication protocol. Part numbers AS10D31, AS10D3E, AS10D41, AS10D51, AS10D61, AS10D71, BT.00603.111, BT.00606.008, BT.00607.125, and BT.00607.127 all cross to this cell.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on an NV-series unit. The BMS handshook correctly on first connection, charge termination triggered at full capacity, and the protection circuit responded normally to load spikes during CPU-intensive tasks.
  • Post-swap calibration cycle: After installing this battery, run the laptop off battery until it hibernates at the low-voltage cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to recalculate against the new cell and clears the inaccurate health warning that appears after every cell swap.

BIOS reporting poor battery health immediately after fitting a new cell

The Gateway NV-series BIOS reads health data from EEPROM stored on the battery's fuel gauge IC — not from live cell voltage. When you install a replacement cell, that EEPROM still holds charge history from the previous battery. The BIOS interprets this stale data as a degraded cell and flags poor health even though the new cell is full capacity. Running one complete discharge-to-hibernate followed by a full uninterrupted charge resets the learn cycle. After two to three cycles, the health indicator updates to reflect the actual cell state.

Laptop shuts down abruptly while the gauge still shows 20–30% remaining

This is a voltage cliff, not a software glitch. Under combined CPU and display load, current draw spikes and cell voltage drops faster than the fuel gauge IC can recalibrate. When voltage falls below the BMS cutoff threshold — typically around 9.0V for an 11.1V three-cell pack — the laptop cuts power instantly, even though the displayed percentage hasn't caught up. The fuel gauge IC needs several full discharge-recharge cycles against the new cell to map the actual voltage curve accurately. Run the laptop unplugged through two complete discharge cycles to bring the gauge into calibration.

Compatible Models

NV4900 NV49C13C NV49C NV59C NV59C43U NV5926 NV5926U NV5929U NV5930U NV5932 NV5932U NV5933U NV5935U NV59C09U NV59C28U NV59C32U NV59C47U NV59C56U NV59C57U NV53 NV5331U NV5337U NV5378U NV5387U NV53A NV53A24u NV53A36u NV53A52u NV55C NV55C03u NV55C11u NV55C14u NV55C15u NV55C17u NV55C19u NV55C22u NV55C24u NV55C25u NV55C26u NV55C28u NV55C29u NV55C30u NV55C31u NV55C32u NV55C33u NV55C34u NV55C38u NV55C39u NV55C44u NV59C05u NV59C11u NV59C26u NV59C27u NV59C31u NV59C34u NV59C35u NV59C40u NV59C41u NV59C42u NV59C44u NV59C46u NV59C48u NV59C49u NV59C50u NV59C66U NV73A NV73A08u NV73A17u NV79 NV7915u NV79C NV79C34u NV79C36u NV79C48u NV79C49u NV79C50u NV79C51u NV79C52u NV79C54uV55C35u NS41I NS51I NV50A NV51B

Replaces Part Numbers

31CR19/652 AS10D31 AS10D3E AS10D41 AS10D61 AS10D71 BT.00603.111 BT.00606.008 BT.00607.125 BT.00607.127 AS10D51

Technical Specifications

Voltage11.1V
Amp Hours6600mAh
Capacity6600mAh
Rate73.26Wh
Net Weight460.2g /16.23 oz
Gross Weight730.2g /25.76 oz
Approximate Weight730.2g /25.76 oz
Dimension 270.95 x 52.61 x 20.10mm

Product Highlights

  • Brand: Gateway
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Gateway NV4900 shows the replacement battery as "0% available (plugged in, not charging)" in Windows — what's happening?

The fuel gauge IC on the new cell hasn't synced its EEPROM data with the BIOS yet, so Windows is reading a stale or blank charge state. Shut the laptop down completely, unplug the charger, remove and reseat the battery, then boot on AC power alone. Once Windows loads, plug in the charger — the charge circuit should initialise and the percentage should begin climbing within two minutes.

System information shows the wrong Wh rating for this battery — it's reporting a lower number than 73.26Wh. Is the battery underspec?

The Wh figure in system info is pulled from the EEPROM on the battery's fuel gauge IC, which stores the rated value programmed at manufacture. If that value doesn't match the 73.26Wh spec on the label, it's a data field difference between OEM part number variants — not a capacity fault in the actual cells. Confirm the real capacity by running a full discharge cycle and checking the mAh logged by the fuel gauge against the 6600mAh rated spec. The physical cell capacity is what matters for actual use.

The battery charges fine but the percentage jumps around — it reads 75%, then 60%, then back to 71% within the same session. Is the cell defective?

The fuel gauge IC calibrates its state-of-charge model against discharge data from the previous battery. With a new cell installed, the voltage-to-capacity curve it's using doesn't match the new cell's actual chemistry profile, so percentage readings oscillate until the IC gathers enough discharge data to rebuild the model. Run two complete discharge cycles — laptop unplugged, used normally until hibernate — followed by full uninterrupted charges each time. After the second cycle, the gauge IC will have enough data to track the new cell accurately.

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